Changeable-speed gearing.



1 No 857,953. Q PATENTED JUNE 25,-1907.

A; L. MUBEN. GHANGBABLE SPEED GEARING. APPLICATION FILED AUG. 20, 1906.

' invahhqv- A.L.Muve n K "by form of an ax sectional ALBERT L. MUREN, OF BELLEVILLE, ILLINO IS.

CHANGEABLE-SPEE'D .GEARING.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed August 20,1906. Serial No. 881,261.

To all whom it may concern:

Be it known that I, ALBERT L. MUREN', a citizen of the United States of America, residing in Belleville, in the county of St. Clair and State of Illinois, have invented certain new and useful Improvements in Change able-S eed Gearings, of which the following is a fu 1, clear, and exact description, reference being had to the accompanying drawin s, forming part of this specification.

iIy invention relates to that class of gearings utilized for driving shafts at varied degrees of speed, the present gearing being intended more particularly for use in driving the axles of motor vehicles.

Figure I is a section taken through my gearing- Fig. II is a cross section taken through the driving shaft of the gearing, and one of the pinions loosely fitted to and adapted to be driven by said shaft.

1 and 1 designate the sections of a sectional driven shaft and which may in the use of the gearing in a motor vehicle be in the e of said vehicle.

2 designates a main driving gear wheel loosely mounted upon the driven shaft section 1 and having a hub sleeve 3. The gear wheel 2 is provided at one side with an inner circular gear face 4 and an outer circular gear face 5 with which parts to be hereinafter ascribed cooperate.

6 is a reversing gear wheel that is fixed to the hub sleeve of the main driving gear wheel 2 and which is provided at its side facing the main driving gear wheel with a. ear face 7.

8 designates arms carried by t e main driving gear wheel 2 and 9 are pinions journaled to these arms.

10 and 11 are transmission gear wheels keyed respectively to the shaft sections 1 and 1 and the teeth of which face each other and mesh correspondingly with the pinions 9 which are located between said transmission gear wheels.

12 desi notes a housing surrounding the driven shaft and the gearing members hereinbefore mentioned.

13 desi nates a drivin shaft that extends ably located at or adjacent to its end which is located within the gearing housing, in order that said shaft may be placed in driving engagement witheither of a series of pinions that will now be described.

15 designates an inner or high speed pinion which is arranged in mesh with the inner circular gear face 4 of the main driving gear wheel 2, this pinion being provided at 16 with internal teeth that are adapted tobe engaged by the teeth 14 of the driving shaft 13 when said teeth are moved into a position within said pinions.

17 is an intermediate or slow speed pinion that is arranged in mesh with the circular gear face 5 of the main driving gear'wheel 2. This slow speed pinion is provided interiorly at 18 with teeth that are adapted to be en gaged by the teeth 14 of the driving shaft when said shaft is moved to bring its teeth thereto, and thepinion is provided with an untoothed portion 19 located between its internal teeth and the toothed ortion of the high speed pinion 15, into Whic the teeth of .the driving shaft may be moved, in order that said teeth may occupy a neutral position and the driving shaft be rendered inoperative to drive either of said pinions.

2O designates a reversing pinion which, like the high and slow speed pinions 15 and 17, surrounds the drivin shaft 13 but which '1 instead of beingarrange in engagement With the main drivin gear wheel 2, is arranged in engagement wit the reversing gear Wheel 7. The reversing pinion 20 is provided at 21 with internal teeth that are adapted to receive the en agement of the circumferential teeth 14 of t e driving shaft 13, the teeth in said pinion being located sufficiently remote from the teeth in the slow speed pinion 17 to provide an untoothed portion 22 Within which the teeth of the driving shaft may operate without said shaft being operative to drive either of the pinions.

For the purpose of supporting the several pinions 15, 17 and 20 of my gearing, the pin ion 20 is provided with a spindle portion which is located within a journal bearing 23 that is mounted in the housing 12, the pinion 17 is provided with a spindle portion which enters into the pinion 20. and also with a spindle portion which enters into the pinion 15. The pinions are further supported by webs or supportin members 12' that are formed integral wit or rigidly connectedto driving shaft 13 is shifted either inwardly or outwardly for the purpose of changing the speed of the earin and it is obvious that when the teeth 14 of said shaft are arranged 5 in engagement with the internal teeth of the high speed pinion 15, said pinion will be driven by said shaft with the result of imparting motion to the main driving gear 'wheel 2 to cause said Wheel to impart rotation to the sectional driven shaft due to its cooperation with the transmission gear wheels 10 and 11; it is also obvious that when the teeth of the drivin shaft are brought into engagement with t e slow speedpinion 17,

x 5 the main driving wheel 2 will be driven at a slow speed and that when the teeth of the drivin shaft are moved into engagement with t ereversingpinion said reversing pinion will be driven to in turn drive the re- 20 versin gear wheel 7 and cause said-reversing cooperate individually with the gear faces of said gear wheel, a reversing gear wheel having fixed connection with said first mentioned ear wheel, a pinion associated with said first named pinions and cooperating with said reversing gear wheel, and a shiftable driving shaft arranged to engage either of said pinions for driving action, substantially as set forth.

' 2. In a changeable speed gearing, the combination of a driven shaft, a driving gear Wheel mounted on said shaft and having gear faces, a plurality of pinions arranged to co operate individually with the gear faces of said gear wheel, a reversing gear wheel having fixed connection with said first mentioned 1giar wheel, a pinion associated with said st named pinions and cooperating with said reversing gear wheel, and a shiftable driving shaft arranged to engage either of said pinions for driving action; said pinions being provided with internal teeth and said driving shaft bein provided with external teeth, substantial y as set forth.

ALBERT 'L. MUREN.

V In presence of- 1 E. G. HEINZELMAN, JAMES P. RICH. 

